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Double-Hung Windows in Washington, D.C.

Our 2000, 4000 and 6000 series of double-hung windows are made with superior performance and energy efficiency in mind. Expect year-round excellence!

Our Most Popular Replacement Window
Add Classic Style To Your Home
Product Details
Color Options

Double-hung windows are not only beautiful, but they allow plenty of natural light in and offer energy savings to your monthly bills. Our replacement double-hung windows are a timeless option for your home, and remain our most popular window style.

  • Convenient operation enhances this attractive, traditional window style
  • Tilt-out upper and lower sashes make these windows easy to clean
  • Many size and design options make this a versatile choice

Double-Hung window colors to meet your specific taste.

Color Options

*Color options may vary based on package, dimensions and more.

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Double-Hung Series

2000 Series Double-Hung

The 2000 series will be a smart, gracious addition to your home, providing a lifetime of beauty, comfort and convenience. Express your unique aesthetic with these custom-made windows.


  • Clean lines and premium construction create a no-frills option for those who seek simplicity
  • All-weather insulation performance promises energy efficiency
  • Slimline design optimizes glass area for beautiful views
  • Fusion-welded sash construction provides years of superior strength and effortless operation
  • Available in double-hung, sliding and picture window styles

4000 Series Double-Hung

4000 series windows from Window World of D.C. are beautiful as well as remarkably solid, sturdy and stable. Our beveled mainframe design is exceptionally slim and refined. Their sleek construction easily complements any type of architecture. You will find that 4000 series vinyl frames will never chip, peel, crack or warp, and are maintenance free.


  • Ensure thermal efficiency with multi-chambered sash & mainframe
  • The hidden screen track produces clean lines and add beauty
  • Beautiful beveled exterior profile gives windows a clean, elegant look
  • Reinforced narrow silhouette frame and sash profiles make a statement of style with their low-profile design.
  • Composite meeting-rail reinforcement allows for secure mounting of hardware; the non-conductive material helps reduce the transfer of energy.
  • End-of-throw cam shift locking delivers increased strength and protection to the recessed lock.
  • The smooth and uniform, true sloped sill quickly directs water runoff without the use of weep holes, keeping the window exterior clean and attractive.

6000 Series Double-Hung

The superior performance of 6000 series windows starts with innovation. Every precision-engineered component contributes to superior energy savings. Best yet, 6000 series windows are covered by Window World of D.C.’s impressive limited lifetime warranty for complete peace-of-mind.


  • Triple-pane insulated glass with Low-E and Argon
  • Foam enhanced mainframe
  • Airtight insulating chambers help reduce conduction and cut high energy bills
  • Quad 4 weatherstripping at the header adds even more protection from the elements
  • Full or half fiberglass screens provide ventilation while keeping insects out
  • Recessed locks

What is energy efficiency?

Energy-Efficient Windows

Energy-efficient windows keep air from leaking in or out of your home, meaning your HVAC system won’t have to work as hard to keep your space comfortable. That also leads to savings on your energy bills.

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Your Questions, Answered

Double-Hung Windows FAQs

What are double-hung windows?

Double-hung windows allow for both top and bottom panes to move up and down independent of the other.

With a reinforced narrow silhouette frame and low profile, double-hung windows make a stylish statement. The result is a beautifully spacious glass area.

At the same time, internal chambers increase the structural integrity and rigidity of the windows as well as add energy efficiency.

Are double-hung windows energy efficient?

Yes! Save on heating and cooling costs year-round with the SolarZone™ TG2 Elite™ insulated glass package. In warm weather, it will reduce solar heat accumulation, minimize interior glare and lower interior glass temperature. In cool temps, it delivers outstanding thermal performance and warmer interior glass surfaces to maintain comfort in the winter. This package also meets all ENERGY STAR requirements.

What are the size dimensions of double-hung windows?

Our double-hung windows are built to fit your home’s specific measurements. Contact us to learn size specifications of our different models.

Does this window style provide long-lasting durability?

Yes! When extreme wind and weather hit, our proprietary sill interlock stands strong. Traditional slope sill designs can allow the sash to bow during powerful winds, but with our interlocking sash-to-sill technology, the sash is channeled firmly into the window frame for a unified wall of strength.

5-Star Google Ratings

What Your Neighbors Are Saying

Sales experience was low key and informative. Decided on the Series 4000 ThermD Double Hung Vinyl windows. Windows were ready for delivery before I was. WW set delivery convenient to my schedule. Installers arrived in time and had all 8 windows installed in no time flat. Would definitely recommend Window World to anyone looking for excellent windows without spending a fortune!
Gerry T.
We love the job that they did to our new windows and trim. The people (Elmer and his crew) who installed it did a fantastic job. And Dustin, who did our estimate, made us very comfortable in purchasing new windows, giving us some knowledge about what type of windows we are getting. We highly recommend Window World! Thank you guys for doing such a great job and giving affordable price for new windows (we previously had estimates from others companies and nobody bit the price that window world had to offer.)
Melissa P.
The installation team did an excellent job with the install of the windows over 2.5 days, with great attention to detail and design. The installers were very friendly and kind, and very efficient with their work. I highly recommend Window World to anyone who needs window replacements. Price, quality of product, and quality of install are all exceptional.
Steven D.

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